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<h1 class="epydoc">Source Code for <a href="tagger-module.html">Module tagger</a></h1>
<pre class="py-src">
<a name="L1"></a><tt class="py-lineno">  1</tt>  <tt class="py-line"><tt class="py-comment">#!/usr/bin/env python</tt> </tt>
<a name="L2"></a><tt class="py-lineno">  2</tt>  <tt class="py-line"><tt class="py-comment"># -*- coding: utf-8 -*-</tt> </tt>
<a name="L3"></a><tt class="py-lineno">  3</tt>  <tt class="py-line"> </tt>
<a name="L4"></a><tt class="py-lineno">  4</tt>  <tt class="py-line"><tt class="py-comment"># Copyright (C) 2011 by Alessandro Presta</tt> </tt>
<a name="L5"></a><tt class="py-lineno">  5</tt>  <tt class="py-line"> </tt>
<a name="L6"></a><tt class="py-lineno">  6</tt>  <tt class="py-line"><tt class="py-comment"># Permission is hereby granted, free of charge, to any person obtaining a copy</tt> </tt>
<a name="L7"></a><tt class="py-lineno">  7</tt>  <tt class="py-line"><tt class="py-comment"># of this software and associated documentation files (the "Software"), to deal</tt> </tt>
<a name="L8"></a><tt class="py-lineno">  8</tt>  <tt class="py-line"><tt class="py-comment"># in the Software without restriction, including without limitation the rights</tt> </tt>
<a name="L9"></a><tt class="py-lineno">  9</tt>  <tt class="py-line"><tt class="py-comment"># to use, copy, modify, merge, publish, distribute, sublicense, and/or sell</tt> </tt>
<a name="L10"></a><tt class="py-lineno"> 10</tt>  <tt class="py-line"><tt class="py-comment"># copies of the Software, and to permit persons to whom the Software is</tt> </tt>
<a name="L11"></a><tt class="py-lineno"> 11</tt>  <tt class="py-line"><tt class="py-comment"># furnished to do so, subject to the following conditions:</tt> </tt>
<a name="L12"></a><tt class="py-lineno"> 12</tt>  <tt class="py-line"> </tt>
<a name="L13"></a><tt class="py-lineno"> 13</tt>  <tt class="py-line"><tt class="py-comment"># The above copyright notice and this permission notice shall be included in</tt> </tt>
<a name="L14"></a><tt class="py-lineno"> 14</tt>  <tt class="py-line"><tt class="py-comment"># all copies or substantial portions of the Software.</tt> </tt>
<a name="L15"></a><tt class="py-lineno"> 15</tt>  <tt class="py-line"> </tt>
<a name="L16"></a><tt class="py-lineno"> 16</tt>  <tt class="py-line"><tt class="py-comment"># THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</tt> </tt>
<a name="L17"></a><tt class="py-lineno"> 17</tt>  <tt class="py-line"><tt class="py-comment"># IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</tt> </tt>
<a name="L18"></a><tt class="py-lineno"> 18</tt>  <tt class="py-line"><tt class="py-comment"># FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</tt> </tt>
<a name="L19"></a><tt class="py-lineno"> 19</tt>  <tt class="py-line"><tt class="py-comment"># AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</tt> </tt>
<a name="L20"></a><tt class="py-lineno"> 20</tt>  <tt class="py-line"><tt class="py-comment"># LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,</tt> </tt>
<a name="L21"></a><tt class="py-lineno"> 21</tt>  <tt class="py-line"><tt class="py-comment"># OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN</tt> </tt>
<a name="L22"></a><tt class="py-lineno"> 22</tt>  <tt class="py-line"><tt class="py-comment"># THE SOFTWARE</tt> </tt>
<a name="L23"></a><tt class="py-lineno"> 23</tt>  <tt class="py-line"> </tt>
<a name="L24"></a><tt class="py-lineno"> 24</tt>  <tt class="py-line"> </tt>
<a name="L25"></a><tt class="py-lineno"> 25</tt>  <tt class="py-line"><tt class="py-docstring">'''</tt> </tt>
<a name="L26"></a><tt class="py-lineno"> 26</tt>  <tt class="py-line"><tt class="py-docstring">======</tt> </tt>
<a name="L27"></a><tt class="py-lineno"> 27</tt>  <tt class="py-line"><tt class="py-docstring">tagger</tt> </tt>
<a name="L28"></a><tt class="py-lineno"> 28</tt>  <tt class="py-line"><tt class="py-docstring">======</tt> </tt>
<a name="L29"></a><tt class="py-lineno"> 29</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L30"></a><tt class="py-lineno"> 30</tt>  <tt class="py-line"><tt class="py-docstring">Module for extracting tags from text documents.</tt> </tt>
<a name="L31"></a><tt class="py-lineno"> 31</tt>  <tt class="py-line"><tt class="py-docstring">                   </tt> </tt>
<a name="L32"></a><tt class="py-lineno"> 32</tt>  <tt class="py-line"><tt class="py-docstring">Copyright (C) 2011 by Alessandro Presta</tt> </tt>
<a name="L33"></a><tt class="py-lineno"> 33</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L34"></a><tt class="py-lineno"> 34</tt>  <tt class="py-line"><tt class="py-docstring">Configuration</tt> </tt>
<a name="L35"></a><tt class="py-lineno"> 35</tt>  <tt class="py-line"><tt class="py-docstring">=============</tt> </tt>
<a name="L36"></a><tt class="py-lineno"> 36</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L37"></a><tt class="py-lineno"> 37</tt>  <tt class="py-line"><tt class="py-docstring">Dependencies:</tt> </tt>
<a name="L38"></a><tt class="py-lineno"> 38</tt>  <tt class="py-line"><tt class="py-docstring">python2.7, stemming, nltk (optional), lxml (optional), tkinter (optional)</tt> </tt>
<a name="L39"></a><tt class="py-lineno"> 39</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L40"></a><tt class="py-lineno"> 40</tt>  <tt class="py-line"><tt class="py-docstring">You can install the stemming package with::</tt> </tt>
<a name="L41"></a><tt class="py-lineno"> 41</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L42"></a><tt class="py-lineno"> 42</tt>  <tt class="py-line"><tt class="py-docstring">    $ easy_install stemming</tt> </tt>
<a name="L43"></a><tt class="py-lineno"> 43</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L44"></a><tt class="py-lineno"> 44</tt>  <tt class="py-line"><tt class="py-docstring">Usage</tt> </tt>
<a name="L45"></a><tt class="py-lineno"> 45</tt>  <tt class="py-line"><tt class="py-docstring">=====</tt> </tt>
<a name="L46"></a><tt class="py-lineno"> 46</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L47"></a><tt class="py-lineno"> 47</tt>  <tt class="py-line"><tt class="py-docstring">Tagging a text document from Python::</tt> </tt>
<a name="L48"></a><tt class="py-lineno"> 48</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L49"></a><tt class="py-lineno"> 49</tt>  <tt class="py-line"><tt class="py-docstring">    import tagger</tt> </tt>
<a name="L50"></a><tt class="py-lineno"> 50</tt>  <tt class="py-line"><tt class="py-docstring">    weights = pickle.load(open('data/dict.pkl', 'rb')) # or your own dictionary</tt> </tt>
<a name="L51"></a><tt class="py-lineno"> 51</tt>  <tt class="py-line"><tt class="py-docstring">    myreader = tagger.Reader() # or your own reader class</tt> </tt>
<a name="L52"></a><tt class="py-lineno"> 52</tt>  <tt class="py-line"><tt class="py-docstring">    mystemmer = tagger.Stemmer() # or your own stemmer class</tt> </tt>
<a name="L53"></a><tt class="py-lineno"> 53</tt>  <tt class="py-line"><tt class="py-docstring">    myrater = tagger.Rater(weights) # or your own... (you got the idea)</tt> </tt>
<a name="L54"></a><tt class="py-lineno"> 54</tt>  <tt class="py-line"><tt class="py-docstring">    mytagger = Tagger(myreader, mystemmer, myrater)</tt> </tt>
<a name="L55"></a><tt class="py-lineno"> 55</tt>  <tt class="py-line"><tt class="py-docstring">    best_3_tags = mytagger(text_string, 3)</tt> </tt>
<a name="L56"></a><tt class="py-lineno"> 56</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L57"></a><tt class="py-lineno"> 57</tt>  <tt class="py-line"><tt class="py-docstring">Running the module as a script::</tt> </tt>
<a name="L58"></a><tt class="py-lineno"> 58</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L59"></a><tt class="py-lineno"> 59</tt>  <tt class="py-line"><tt class="py-docstring">    $ ./tagger.py &lt;text document(s) to tag&gt;</tt> </tt>
<a name="L60"></a><tt class="py-lineno"> 60</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L61"></a><tt class="py-lineno"> 61</tt>  <tt class="py-line"><tt class="py-docstring">Example::</tt> </tt>
<a name="L62"></a><tt class="py-lineno"> 62</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L63"></a><tt class="py-lineno"> 63</tt>  <tt class="py-line"><tt class="py-docstring">    $ ./tagger.py tests/*</tt> </tt>
<a name="L64"></a><tt class="py-lineno"> 64</tt>  <tt class="py-line"><tt class="py-docstring">    Loading dictionary... </tt> </tt>
<a name="L65"></a><tt class="py-lineno"> 65</tt>  <tt class="py-line"><tt class="py-docstring">    Tags for  tests/bbc1.txt :</tt> </tt>
<a name="L66"></a><tt class="py-lineno"> 66</tt>  <tt class="py-line"><tt class="py-docstring">    ['bin laden', 'obama', 'pakistan', 'killed', 'raid']</tt> </tt>
<a name="L67"></a><tt class="py-lineno"> 67</tt>  <tt class="py-line"><tt class="py-docstring">    Tags for  tests/bbc2.txt :</tt> </tt>
<a name="L68"></a><tt class="py-lineno"> 68</tt>  <tt class="py-line"><tt class="py-docstring">    ['jo yeates', 'bristol', 'vincent tabak', 'murder', 'strangled']</tt> </tt>
<a name="L69"></a><tt class="py-lineno"> 69</tt>  <tt class="py-line"><tt class="py-docstring">    Tags for  tests/bbc3.txt :</tt> </tt>
<a name="L70"></a><tt class="py-lineno"> 70</tt>  <tt class="py-line"><tt class="py-docstring">    ['snp', 'party', 'election', 'scottish', 'labour']</tt> </tt>
<a name="L71"></a><tt class="py-lineno"> 71</tt>  <tt class="py-line"><tt class="py-docstring">    Tags for  tests/guardian1.txt :</tt> </tt>
<a name="L72"></a><tt class="py-lineno"> 72</tt>  <tt class="py-line"><tt class="py-docstring">    ['bin laden', 'al-qaida', 'killed', 'pakistan', 'al-fawwaz']</tt> </tt>
<a name="L73"></a><tt class="py-lineno"> 73</tt>  <tt class="py-line"><tt class="py-docstring">    Tags for  tests/guardian2.txt :</tt> </tt>
<a name="L74"></a><tt class="py-lineno"> 74</tt>  <tt class="py-line"><tt class="py-docstring">    ['clegg', 'tory', 'lib dem', 'party', 'coalition']</tt> </tt>
<a name="L75"></a><tt class="py-lineno"> 75</tt>  <tt class="py-line"><tt class="py-docstring">    Tags for  tests/post1.txt :</tt> </tt>
<a name="L76"></a><tt class="py-lineno"> 76</tt>  <tt class="py-line"><tt class="py-docstring">    ['sony', 'stolen', 'playstation network', 'hacker attack', 'lawsuit']</tt> </tt>
<a name="L77"></a><tt class="py-lineno"> 77</tt>  <tt class="py-line"><tt class="py-docstring">    Tags for  tests/wikipedia1.txt :</tt> </tt>
<a name="L78"></a><tt class="py-lineno"> 78</tt>  <tt class="py-line"><tt class="py-docstring">    ['universe', 'anthropic principle', 'observed', 'cosmological', 'theory']</tt> </tt>
<a name="L79"></a><tt class="py-lineno"> 79</tt>  <tt class="py-line"><tt class="py-docstring">    Tags for  tests/wikipedia2.txt :</tt> </tt>
<a name="L80"></a><tt class="py-lineno"> 80</tt>  <tt class="py-line"><tt class="py-docstring">    ['beetroot', 'beet', 'betaine', 'blood pressure', 'dietary nitrate']</tt> </tt>
<a name="L81"></a><tt class="py-lineno"> 81</tt>  <tt class="py-line"><tt class="py-docstring">    Tags for  tests/wikipedia3.txt :</tt> </tt>
<a name="L82"></a><tt class="py-lineno"> 82</tt>  <tt class="py-line"><tt class="py-docstring">    ['the lounge lizards', 'jazz', 'john lurie', 'musical', 'albums']</tt> </tt>
<a name="L83"></a><tt class="py-lineno"> 83</tt>  <tt class="py-line"><tt class="py-docstring">'''</tt> </tt>
<a name="L84"></a><tt class="py-lineno"> 84</tt>  <tt class="py-line"> </tt>
<a name="L85"></a><tt class="py-lineno"> 85</tt>  <tt class="py-line"><tt class="py-keyword">import</tt> <tt class="py-name">collections</tt> </tt>
<a name="L86"></a><tt class="py-lineno"> 86</tt>  <tt class="py-line"><tt class="py-keyword">import</tt> <tt class="py-name">re</tt> </tt>
<a name="L87"></a><tt class="py-lineno"> 87</tt>  <tt class="py-line"> </tt>
<a name="L88"></a><tt class="py-lineno"> 88</tt>  <tt class="py-line"> </tt>
<a name="Tag"></a><div id="Tag-def"><a name="L89"></a><tt class="py-lineno"> 89</tt> <a class="py-toggle" href="#" id="Tag-toggle" onclick="return toggle('Tag');">-</a><tt class="py-line"><tt class="py-keyword">class</tt> <a class="py-def-name" href="tagger.Tag-class.html">Tag</a><tt class="py-op">:</tt> </tt>
</div><div id="Tag-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="Tag-expanded"><a name="L90"></a><tt class="py-lineno"> 90</tt>  <tt class="py-line">    <tt class="py-docstring">'''</tt> </tt>
<a name="L91"></a><tt class="py-lineno"> 91</tt>  <tt class="py-line"><tt class="py-docstring">    General class for tags (small units of text)</tt> </tt>
<a name="L92"></a><tt class="py-lineno"> 92</tt>  <tt class="py-line"><tt class="py-docstring">    '''</tt> </tt>
<a name="L93"></a><tt class="py-lineno"> 93</tt>  <tt class="py-line">     </tt>
<a name="Tag.__init__"></a><div id="Tag.__init__-def"><a name="L94"></a><tt class="py-lineno"> 94</tt> <a class="py-toggle" href="#" id="Tag.__init__-toggle" onclick="return toggle('Tag.__init__');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="tagger.Tag-class.html#__init__">__init__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">string</tt><tt class="py-op">,</tt> <tt class="py-param">stem</tt><tt class="py-op">=</tt><tt class="py-name">None</tt><tt class="py-op">,</tt> <tt class="py-param">rating</tt><tt class="py-op">=</tt><tt class="py-number">1.0</tt><tt class="py-op">,</tt> <tt class="py-param">proper</tt><tt class="py-op">=</tt><tt class="py-name">False</tt><tt class="py-op">,</tt> </tt>
<a name="L95"></a><tt class="py-lineno"> 95</tt>  <tt class="py-line">                 <tt class="py-param">terminal</tt><tt class="py-op">=</tt><tt class="py-name">False</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="Tag.__init__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="Tag.__init__-expanded"><a name="L96"></a><tt class="py-lineno"> 96</tt>  <tt class="py-line">        <tt class="py-docstring">'''</tt> </tt>
<a name="L97"></a><tt class="py-lineno"> 97</tt>  <tt class="py-line"><tt class="py-docstring">        @param string:   the actual representation of the tag</tt> </tt>
<a name="L98"></a><tt class="py-lineno"> 98</tt>  <tt class="py-line"><tt class="py-docstring">        @param stem:     the internal (usually stemmed) representation;</tt> </tt>
<a name="L99"></a><tt class="py-lineno"> 99</tt>  <tt class="py-line"><tt class="py-docstring">                         tags with the same stem are regarded as equal</tt> </tt>
<a name="L100"></a><tt class="py-lineno">100</tt>  <tt class="py-line"><tt class="py-docstring">        @param rating:   a measure of the tag's relevance in the interval [0,1]</tt> </tt>
<a name="L101"></a><tt class="py-lineno">101</tt>  <tt class="py-line"><tt class="py-docstring">        @param proper:   whether the tag is a proper noun</tt> </tt>
<a name="L102"></a><tt class="py-lineno">102</tt>  <tt class="py-line"><tt class="py-docstring">        @param terminal: set to True if the tag is at the end of a phrase</tt> </tt>
<a name="L103"></a><tt class="py-lineno">103</tt>  <tt class="py-line"><tt class="py-docstring">                         (or anyway it cannot be logically merged to the</tt> </tt>
<a name="L104"></a><tt class="py-lineno">104</tt>  <tt class="py-line"><tt class="py-docstring">                         following one)</tt> </tt>
<a name="L105"></a><tt class="py-lineno">105</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L106"></a><tt class="py-lineno">106</tt>  <tt class="py-line"><tt class="py-docstring">        @returns: a new L{Tag} object</tt> </tt>
<a name="L107"></a><tt class="py-lineno">107</tt>  <tt class="py-line"><tt class="py-docstring">        '''</tt> </tt>
<a name="L108"></a><tt class="py-lineno">108</tt>  <tt class="py-line">             </tt>
<a name="L109"></a><tt class="py-lineno">109</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">string</tt>  <tt class="py-op">=</tt> <tt class="py-name">string</tt> </tt>
<a name="L110"></a><tt class="py-lineno">110</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">stem</tt> <tt class="py-op">=</tt> <tt class="py-name">stem</tt> <tt class="py-keyword">or</tt> <tt class="py-name">string</tt> </tt>
<a name="L111"></a><tt class="py-lineno">111</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">rating</tt> <tt class="py-op">=</tt> <tt class="py-name">rating</tt> </tt>
<a name="L112"></a><tt class="py-lineno">112</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">proper</tt> <tt class="py-op">=</tt> <tt class="py-name">proper</tt> </tt>
<a name="L113"></a><tt class="py-lineno">113</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">terminal</tt> <tt class="py-op">=</tt> <tt class="py-name">terminal</tt> </tt>
</div><a name="L114"></a><tt class="py-lineno">114</tt>  <tt class="py-line">         </tt>
<a name="Tag.__eq__"></a><div id="Tag.__eq__-def"><a name="L115"></a><tt class="py-lineno">115</tt> <a class="py-toggle" href="#" id="Tag.__eq__-toggle" onclick="return toggle('Tag.__eq__');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="tagger.Tag-class.html#__eq__">__eq__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">other</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="Tag.__eq__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="Tag.__eq__-expanded"><a name="L116"></a><tt class="py-lineno">116</tt>  <tt class="py-line">        <tt class="py-keyword">return</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">stem</tt> <tt class="py-op">==</tt> <tt class="py-name">other</tt><tt class="py-op">.</tt><tt class="py-name">stem</tt> </tt>
</div><a name="L117"></a><tt class="py-lineno">117</tt>  <tt class="py-line"> </tt>
<a name="Tag.__repr__"></a><div id="Tag.__repr__-def"><a name="L118"></a><tt class="py-lineno">118</tt> <a class="py-toggle" href="#" id="Tag.__repr__-toggle" onclick="return toggle('Tag.__repr__');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="tagger.Tag-class.html#__repr__">__repr__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="Tag.__repr__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="Tag.__repr__-expanded"><a name="L119"></a><tt class="py-lineno">119</tt>  <tt class="py-line">        <tt class="py-keyword">return</tt> <tt class="py-name">repr</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">string</tt><tt class="py-op">)</tt> </tt>
</div><a name="L120"></a><tt class="py-lineno">120</tt>  <tt class="py-line"> </tt>
<a name="Tag.__lt__"></a><div id="Tag.__lt__-def"><a name="L121"></a><tt class="py-lineno">121</tt> <a class="py-toggle" href="#" id="Tag.__lt__-toggle" onclick="return toggle('Tag.__lt__');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="tagger.Tag-class.html#__lt__">__lt__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">other</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="Tag.__lt__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="Tag.__lt__-expanded"><a name="L122"></a><tt class="py-lineno">122</tt>  <tt class="py-line">        <tt class="py-keyword">return</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">rating</tt> <tt class="py-op">&gt;</tt> <tt class="py-name">other</tt><tt class="py-op">.</tt><tt class="py-name">rating</tt> </tt>
</div><a name="L123"></a><tt class="py-lineno">123</tt>  <tt class="py-line"> </tt>
<a name="Tag.__hash__"></a><div id="Tag.__hash__-def"><a name="L124"></a><tt class="py-lineno">124</tt> <a class="py-toggle" href="#" id="Tag.__hash__-toggle" onclick="return toggle('Tag.__hash__');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="tagger.Tag-class.html#__hash__">__hash__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="Tag.__hash__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="Tag.__hash__-expanded"><a name="L125"></a><tt class="py-lineno">125</tt>  <tt class="py-line">        <tt class="py-keyword">return</tt> <tt class="py-name">hash</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">stem</tt><tt class="py-op">)</tt> </tt>
</div></div><a name="L126"></a><tt class="py-lineno">126</tt>  <tt class="py-line"> </tt>
<a name="L127"></a><tt class="py-lineno">127</tt>  <tt class="py-line"> </tt>
<a name="MultiTag"></a><div id="MultiTag-def"><a name="L128"></a><tt class="py-lineno">128</tt> <a class="py-toggle" href="#" id="MultiTag-toggle" onclick="return toggle('MultiTag');">-</a><tt class="py-line"><tt class="py-keyword">class</tt> <a class="py-def-name" href="tagger.MultiTag-class.html">MultiTag</a><tt class="py-op">(</tt><tt class="py-base-class">Tag</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="MultiTag-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="MultiTag-expanded"><a name="L129"></a><tt class="py-lineno">129</tt>  <tt class="py-line">    <tt class="py-docstring">'''</tt> </tt>
<a name="L130"></a><tt class="py-lineno">130</tt>  <tt class="py-line"><tt class="py-docstring">    Class for aggregates of tags (usually next to each other in the document)</tt> </tt>
<a name="L131"></a><tt class="py-lineno">131</tt>  <tt class="py-line"><tt class="py-docstring">    '''</tt> </tt>
<a name="L132"></a><tt class="py-lineno">132</tt>  <tt class="py-line">     </tt>
<a name="MultiTag.__init__"></a><div id="MultiTag.__init__-def"><a name="L133"></a><tt class="py-lineno">133</tt> <a class="py-toggle" href="#" id="MultiTag.__init__-toggle" onclick="return toggle('MultiTag.__init__');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="tagger.MultiTag-class.html#__init__">__init__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">tail</tt><tt class="py-op">,</tt> <tt class="py-param">head</tt><tt class="py-op">=</tt><tt class="py-name">None</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="MultiTag.__init__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="MultiTag.__init__-expanded"><a name="L134"></a><tt class="py-lineno">134</tt>  <tt class="py-line">        <tt class="py-docstring">'''</tt> </tt>
<a name="L135"></a><tt class="py-lineno">135</tt>  <tt class="py-line"><tt class="py-docstring">        @param tail: the L{Tag} object to add to the first part (head)</tt> </tt>
<a name="L136"></a><tt class="py-lineno">136</tt>  <tt class="py-line"><tt class="py-docstring">        @param head: the (eventually absent) L{MultiTag} to be extended</tt> </tt>
<a name="L137"></a><tt class="py-lineno">137</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L138"></a><tt class="py-lineno">138</tt>  <tt class="py-line"><tt class="py-docstring">        @returns: a new L{MultiTag} object</tt> </tt>
<a name="L139"></a><tt class="py-lineno">139</tt>  <tt class="py-line"><tt class="py-docstring">        '''</tt> </tt>
<a name="L140"></a><tt class="py-lineno">140</tt>  <tt class="py-line">         </tt>
<a name="L141"></a><tt class="py-lineno">141</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-keyword">not</tt> <tt class="py-name">head</tt><tt class="py-op">:</tt> </tt>
<a name="L142"></a><tt class="py-lineno">142</tt>  <tt class="py-line">            <tt id="link-0" class="py-name" targets="Class tagger.Tag=tagger.Tag-class.html"><a title="tagger.Tag" class="py-name" href="#" onclick="return doclink('link-0', 'Tag', 'link-0');">Tag</a></tt><tt class="py-op">.</tt><tt id="link-1" class="py-name" targets="Method extras.FastStemmer.__init__()=extras.FastStemmer-class.html#__init__,Method tagger.MultiTag.__init__()=tagger.MultiTag-class.html#__init__,Method tagger.Rater.__init__()=tagger.Rater-class.html#__init__,Method tagger.Stemmer.__init__()=tagger.Stemmer-class.html#__init__,Method tagger.Tag.__init__()=tagger.Tag-class.html#__init__,Method tagger.Tagger.__init__()=tagger.Tagger-class.html#__init__"><a title="extras.FastStemmer.__init__
tagger.MultiTag.__init__
tagger.Rater.__init__
tagger.Stemmer.__init__
tagger.Tag.__init__
tagger.Tagger.__init__" class="py-name" href="#" onclick="return doclink('link-1', '__init__', 'link-1');">__init__</a></tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">,</tt> <tt class="py-name">tail</tt><tt class="py-op">.</tt><tt class="py-name">string</tt><tt class="py-op">,</tt> <tt class="py-name">tail</tt><tt class="py-op">.</tt><tt class="py-name">stem</tt><tt class="py-op">,</tt> <tt class="py-name">tail</tt><tt class="py-op">.</tt><tt class="py-name">rating</tt><tt class="py-op">,</tt> </tt>
<a name="L143"></a><tt class="py-lineno">143</tt>  <tt class="py-line">                         <tt class="py-name">tail</tt><tt class="py-op">.</tt><tt class="py-name">proper</tt><tt class="py-op">,</tt> <tt class="py-name">tail</tt><tt class="py-op">.</tt><tt class="py-name">terminal</tt><tt class="py-op">)</tt> </tt>
<a name="L144"></a><tt class="py-lineno">144</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">size</tt> <tt class="py-op">=</tt> <tt class="py-number">1</tt> </tt>
<a name="L145"></a><tt class="py-lineno">145</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">subratings</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">rating</tt><tt class="py-op">]</tt> </tt>
<a name="L146"></a><tt class="py-lineno">146</tt>  <tt class="py-line">        <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L147"></a><tt class="py-lineno">147</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">string</tt> <tt class="py-op">=</tt> <tt class="py-string">' '</tt><tt class="py-op">.</tt><tt class="py-name">join</tt><tt class="py-op">(</tt><tt class="py-op">[</tt><tt class="py-name">head</tt><tt class="py-op">.</tt><tt class="py-name">string</tt><tt class="py-op">,</tt> <tt class="py-name">tail</tt><tt class="py-op">.</tt><tt class="py-name">string</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> </tt>
<a name="L148"></a><tt class="py-lineno">148</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">stem</tt> <tt class="py-op">=</tt> <tt class="py-string">' '</tt><tt class="py-op">.</tt><tt class="py-name">join</tt><tt class="py-op">(</tt><tt class="py-op">[</tt><tt class="py-name">head</tt><tt class="py-op">.</tt><tt class="py-name">stem</tt><tt class="py-op">,</tt> <tt class="py-name">tail</tt><tt class="py-op">.</tt><tt class="py-name">stem</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> </tt>
<a name="L149"></a><tt class="py-lineno">149</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">size</tt> <tt class="py-op">=</tt> <tt class="py-name">head</tt><tt class="py-op">.</tt><tt class="py-name">size</tt> <tt class="py-op">+</tt> <tt class="py-number">1</tt> </tt>
<a name="L150"></a><tt class="py-lineno">150</tt>  <tt class="py-line"> </tt>
<a name="L151"></a><tt class="py-lineno">151</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">proper</tt> <tt class="py-op">=</tt> <tt class="py-op">(</tt><tt class="py-name">head</tt><tt class="py-op">.</tt><tt class="py-name">proper</tt> <tt class="py-keyword">and</tt> <tt class="py-name">tail</tt><tt class="py-op">.</tt><tt class="py-name">proper</tt><tt class="py-op">)</tt> </tt>
<a name="L152"></a><tt class="py-lineno">152</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">terminal</tt> <tt class="py-op">=</tt> <tt class="py-name">tail</tt><tt class="py-op">.</tt><tt class="py-name">terminal</tt> </tt>
<a name="L153"></a><tt class="py-lineno">153</tt>  <tt class="py-line"> </tt>
<a name="L154"></a><tt class="py-lineno">154</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">subratings</tt> <tt class="py-op">=</tt> <tt class="py-name">head</tt><tt class="py-op">.</tt><tt class="py-name">subratings</tt> <tt class="py-op">+</tt> <tt class="py-op">[</tt><tt class="py-name">tail</tt><tt class="py-op">.</tt><tt class="py-name">rating</tt><tt class="py-op">]</tt> </tt>
<a name="L155"></a><tt class="py-lineno">155</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">rating</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-2" class="py-name" targets="Method tagger.MultiTag.combined_rating()=tagger.MultiTag-class.html#combined_rating"><a title="tagger.MultiTag.combined_rating" class="py-name" href="#" onclick="return doclink('link-2', 'combined_rating', 'link-2');">combined_rating</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
</div><a name="L156"></a><tt class="py-lineno">156</tt>  <tt class="py-line">                                            </tt>
<a name="MultiTag.combined_rating"></a><div id="MultiTag.combined_rating-def"><a name="L157"></a><tt class="py-lineno">157</tt> <a class="py-toggle" href="#" id="MultiTag.combined_rating-toggle" onclick="return toggle('MultiTag.combined_rating');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="tagger.MultiTag-class.html#combined_rating">combined_rating</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="MultiTag.combined_rating-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="MultiTag.combined_rating-expanded"><a name="L158"></a><tt class="py-lineno">158</tt>  <tt class="py-line">        <tt class="py-docstring">'''</tt> </tt>
<a name="L159"></a><tt class="py-lineno">159</tt>  <tt class="py-line"><tt class="py-docstring">        Method that computes the multitag's rating from the ratings of unit</tt> </tt>
<a name="L160"></a><tt class="py-lineno">160</tt>  <tt class="py-line"><tt class="py-docstring">        subtags</tt> </tt>
<a name="L161"></a><tt class="py-lineno">161</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L162"></a><tt class="py-lineno">162</tt>  <tt class="py-line"><tt class="py-docstring">        (the default implementation uses the geometric mean - with a special</tt> </tt>
<a name="L163"></a><tt class="py-lineno">163</tt>  <tt class="py-line"><tt class="py-docstring">        treatment for proper nouns - but this method can be overridden)</tt> </tt>
<a name="L164"></a><tt class="py-lineno">164</tt>  <tt class="py-line"><tt class="py-docstring">        </tt> </tt>
<a name="L165"></a><tt class="py-lineno">165</tt>  <tt class="py-line"><tt class="py-docstring">        @returns: the rating of the multitag</tt> </tt>
<a name="L166"></a><tt class="py-lineno">166</tt>  <tt class="py-line"><tt class="py-docstring">        '''</tt> </tt>
<a name="L167"></a><tt class="py-lineno">167</tt>  <tt class="py-line">         </tt>
<a name="L168"></a><tt class="py-lineno">168</tt>  <tt class="py-line">        <tt class="py-comment"># by default, the rating of a multitag is the geometric mean of its</tt> </tt>
<a name="L169"></a><tt class="py-lineno">169</tt>  <tt class="py-line">        <tt class="py-comment"># unit subtags' ratings</tt> </tt>
<a name="L170"></a><tt class="py-lineno">170</tt>  <tt class="py-line">        <tt class="py-name">product</tt> <tt class="py-op">=</tt> <tt class="py-name">reduce</tt><tt class="py-op">(</tt><tt class="py-keyword">lambda</tt> <tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">y</tt><tt class="py-op">:</tt> <tt class="py-name">x</tt> <tt class="py-op">*</tt> <tt class="py-name">y</tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">subratings</tt><tt class="py-op">,</tt> <tt class="py-number">1.0</tt><tt class="py-op">)</tt> </tt>
<a name="L171"></a><tt class="py-lineno">171</tt>  <tt class="py-line">        <tt class="py-name">root</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">size</tt> </tt>
<a name="L172"></a><tt class="py-lineno">172</tt>  <tt class="py-line">         </tt>
<a name="L173"></a><tt class="py-lineno">173</tt>  <tt class="py-line">        <tt class="py-comment"># but proper nouns shouldn't be penalized by stopwords</tt> </tt>
<a name="L174"></a><tt class="py-lineno">174</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-name">product</tt> <tt class="py-op">==</tt> <tt class="py-number">0.0</tt> <tt class="py-keyword">and</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">proper</tt><tt class="py-op">:</tt> </tt>
<a name="L175"></a><tt class="py-lineno">175</tt>  <tt class="py-line">            <tt class="py-name">nonzero</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt class="py-name">r</tt> <tt class="py-keyword">for</tt> <tt class="py-name">r</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">subratings</tt> <tt class="py-keyword">if</tt> <tt class="py-name">r</tt> <tt class="py-op">&gt;</tt> <tt class="py-number">0.0</tt><tt class="py-op">]</tt> </tt>
<a name="L176"></a><tt class="py-lineno">176</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">nonzero</tt><tt class="py-op">)</tt> <tt class="py-op">==</tt> <tt class="py-number">0</tt><tt class="py-op">:</tt> </tt>
<a name="L177"></a><tt class="py-lineno">177</tt>  <tt class="py-line">                <tt class="py-keyword">return</tt> <tt class="py-number">0.0</tt> </tt>
<a name="L178"></a><tt class="py-lineno">178</tt>  <tt class="py-line">            <tt class="py-name">product</tt> <tt class="py-op">=</tt> <tt class="py-name">reduce</tt><tt class="py-op">(</tt><tt class="py-keyword">lambda</tt> <tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">y</tt><tt class="py-op">:</tt> <tt class="py-name">x</tt> <tt class="py-op">*</tt> <tt class="py-name">y</tt><tt class="py-op">,</tt> <tt class="py-name">nonzero</tt><tt class="py-op">,</tt> <tt class="py-number">1.0</tt><tt class="py-op">)</tt> </tt>
<a name="L179"></a><tt class="py-lineno">179</tt>  <tt class="py-line">            <tt class="py-name">root</tt> <tt class="py-op">=</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">nonzero</tt><tt class="py-op">)</tt> </tt>
<a name="L180"></a><tt class="py-lineno">180</tt>  <tt class="py-line">             </tt>
<a name="L181"></a><tt class="py-lineno">181</tt>  <tt class="py-line">        <tt class="py-keyword">return</tt> <tt class="py-name">product</tt> <tt class="py-op">**</tt> <tt class="py-op">(</tt><tt class="py-number">1.0</tt> <tt class="py-op">/</tt> <tt class="py-name">root</tt><tt class="py-op">)</tt> </tt>
</div></div><a name="L182"></a><tt class="py-lineno">182</tt>  <tt class="py-line"> </tt>
<a name="L183"></a><tt class="py-lineno">183</tt>  <tt class="py-line">     </tt>
<a name="Reader"></a><div id="Reader-def"><a name="L184"></a><tt class="py-lineno">184</tt> <a class="py-toggle" href="#" id="Reader-toggle" onclick="return toggle('Reader');">-</a><tt class="py-line"><tt class="py-keyword">class</tt> <a class="py-def-name" href="tagger.Reader-class.html">Reader</a><tt class="py-op">:</tt> </tt>
</div><div id="Reader-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="Reader-expanded"><a name="L185"></a><tt class="py-lineno">185</tt>  <tt class="py-line">    <tt class="py-docstring">'''</tt> </tt>
<a name="L186"></a><tt class="py-lineno">186</tt>  <tt class="py-line"><tt class="py-docstring">    Class for parsing a string of text to obtain tags</tt> </tt>
<a name="L187"></a><tt class="py-lineno">187</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L188"></a><tt class="py-lineno">188</tt>  <tt class="py-line"><tt class="py-docstring">    (it just turns the string to lowercase and splits it according to</tt> </tt>
<a name="L189"></a><tt class="py-lineno">189</tt>  <tt class="py-line"><tt class="py-docstring">    whitespaces and punctuation, identifying proper nouns and terminal words;</tt> </tt>
<a name="L190"></a><tt class="py-lineno">190</tt>  <tt class="py-line"><tt class="py-docstring">    different rules and formats other than plain text could be used)</tt> </tt>
<a name="L191"></a><tt class="py-lineno">191</tt>  <tt class="py-line"><tt class="py-docstring">    '''</tt> </tt>
<a name="L192"></a><tt class="py-lineno">192</tt>  <tt class="py-line"> </tt>
<a name="L193"></a><tt class="py-lineno">193</tt>  <tt class="py-line">    <tt id="link-3" class="py-name" targets="Variable tagger.Reader.match_apostrophes=tagger.Reader-class.html#match_apostrophes"><a title="tagger.Reader.match_apostrophes" class="py-name" href="#" onclick="return doclink('link-3', 'match_apostrophes', 'link-3');">match_apostrophes</a></tt> <tt class="py-op">=</tt> <tt class="py-name">re</tt><tt class="py-op">.</tt><tt class="py-name">compile</tt><tt class="py-op">(</tt><tt class="py-string">'`|&#8217;'</tt><tt class="py-op">)</tt> </tt>
<a name="L194"></a><tt class="py-lineno">194</tt>  <tt class="py-line">    <tt id="link-4" class="py-name" targets="Variable tagger.Reader.match_paragraphs=tagger.Reader-class.html#match_paragraphs"><a title="tagger.Reader.match_paragraphs" class="py-name" href="#" onclick="return doclink('link-4', 'match_paragraphs', 'link-4');">match_paragraphs</a></tt> <tt class="py-op">=</tt> <tt class="py-name">re</tt><tt class="py-op">.</tt><tt class="py-name">compile</tt><tt class="py-op">(</tt><tt class="py-string">'[\.\?!\t\n\r\f\v]+'</tt><tt class="py-op">)</tt> </tt>
<a name="L195"></a><tt class="py-lineno">195</tt>  <tt class="py-line">    <tt id="link-5" class="py-name" targets="Variable tagger.Reader.match_phrases=tagger.Reader-class.html#match_phrases"><a title="tagger.Reader.match_phrases" class="py-name" href="#" onclick="return doclink('link-5', 'match_phrases', 'link-5');">match_phrases</a></tt> <tt class="py-op">=</tt> <tt class="py-name">re</tt><tt class="py-op">.</tt><tt class="py-name">compile</tt><tt class="py-op">(</tt><tt class="py-string">'[,;:\(\)\[\]\{\}&lt;&gt;]+'</tt><tt class="py-op">)</tt> </tt>
<a name="L196"></a><tt class="py-lineno">196</tt>  <tt class="py-line">    <tt id="link-6" class="py-name" targets="Variable tagger.Reader.match_words=tagger.Reader-class.html#match_words"><a title="tagger.Reader.match_words" class="py-name" href="#" onclick="return doclink('link-6', 'match_words', 'link-6');">match_words</a></tt> <tt class="py-op">=</tt> <tt class="py-name">re</tt><tt class="py-op">.</tt><tt class="py-name">compile</tt><tt class="py-op">(</tt><tt class="py-string">'[\w\-\'_/&amp;]+'</tt><tt class="py-op">)</tt> </tt>
<a name="L197"></a><tt class="py-lineno">197</tt>  <tt class="py-line">     </tt>
<a name="Reader.__call__"></a><div id="Reader.__call__-def"><a name="L198"></a><tt class="py-lineno">198</tt> <a class="py-toggle" href="#" id="Reader.__call__-toggle" onclick="return toggle('Reader.__call__');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="tagger.Reader-class.html#__call__">__call__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">text</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="Reader.__call__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="Reader.__call__-expanded"><a name="L199"></a><tt class="py-lineno">199</tt>  <tt class="py-line">        <tt class="py-docstring">'''</tt> </tt>
<a name="L200"></a><tt class="py-lineno">200</tt>  <tt class="py-line"><tt class="py-docstring">        @param text: the string of text to be tagged</tt> </tt>
<a name="L201"></a><tt class="py-lineno">201</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L202"></a><tt class="py-lineno">202</tt>  <tt class="py-line"><tt class="py-docstring">        @returns: a list of tags respecting the order in the text</tt> </tt>
<a name="L203"></a><tt class="py-lineno">203</tt>  <tt class="py-line"><tt class="py-docstring">        '''</tt> </tt>
<a name="L204"></a><tt class="py-lineno">204</tt>  <tt class="py-line"> </tt>
<a name="L205"></a><tt class="py-lineno">205</tt>  <tt class="py-line">        <tt class="py-name">text</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-7" class="py-name" targets="Method tagger.Reader.preprocess()=tagger.Reader-class.html#preprocess,Method tagger.Stemmer.preprocess()=tagger.Stemmer-class.html#preprocess"><a title="tagger.Reader.preprocess
tagger.Stemmer.preprocess" class="py-name" href="#" onclick="return doclink('link-7', 'preprocess', 'link-7');">preprocess</a></tt><tt class="py-op">(</tt><tt class="py-name">text</tt><tt class="py-op">)</tt> </tt>
<a name="L206"></a><tt class="py-lineno">206</tt>  <tt class="py-line"> </tt>
<a name="L207"></a><tt class="py-lineno">207</tt>  <tt class="py-line">        <tt class="py-comment"># split by full stops, newlines, question marks...</tt> </tt>
<a name="L208"></a><tt class="py-lineno">208</tt>  <tt class="py-line">        <tt class="py-name">paragraphs</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-8" class="py-name"><a title="tagger.Reader.match_paragraphs" class="py-name" href="#" onclick="return doclink('link-8', 'match_paragraphs', 'link-4');">match_paragraphs</a></tt><tt class="py-op">.</tt><tt class="py-name">split</tt><tt class="py-op">(</tt><tt class="py-name">text</tt><tt class="py-op">)</tt> </tt>
<a name="L209"></a><tt class="py-lineno">209</tt>  <tt class="py-line"> </tt>
<a name="L210"></a><tt class="py-lineno">210</tt>  <tt class="py-line">        <tt class="py-name">tags</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt class="py-op">]</tt> </tt>
<a name="L211"></a><tt class="py-lineno">211</tt>  <tt class="py-line"> </tt>
<a name="L212"></a><tt class="py-lineno">212</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">par</tt> <tt class="py-keyword">in</tt> <tt class="py-name">paragraphs</tt><tt class="py-op">:</tt> </tt>
<a name="L213"></a><tt class="py-lineno">213</tt>  <tt class="py-line">            <tt class="py-comment"># split by commas, colons, parentheses...</tt> </tt>
<a name="L214"></a><tt class="py-lineno">214</tt>  <tt class="py-line">            <tt class="py-name">phrases</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-9" class="py-name"><a title="tagger.Reader.match_phrases" class="py-name" href="#" onclick="return doclink('link-9', 'match_phrases', 'link-5');">match_phrases</a></tt><tt class="py-op">.</tt><tt class="py-name">split</tt><tt class="py-op">(</tt><tt class="py-name">par</tt><tt class="py-op">)</tt> </tt>
<a name="L215"></a><tt class="py-lineno">215</tt>  <tt class="py-line"> </tt>
<a name="L216"></a><tt class="py-lineno">216</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">phrases</tt><tt class="py-op">)</tt> <tt class="py-op">&gt;</tt> <tt class="py-number">0</tt><tt class="py-op">:</tt> </tt>
<a name="L217"></a><tt class="py-lineno">217</tt>  <tt class="py-line">                <tt class="py-comment"># first phrase of a paragraph</tt> </tt>
<a name="L218"></a><tt class="py-lineno">218</tt>  <tt class="py-line">                <tt class="py-name">words</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-10" class="py-name"><a title="tagger.Reader.match_words" class="py-name" href="#" onclick="return doclink('link-10', 'match_words', 'link-6');">match_words</a></tt><tt class="py-op">.</tt><tt class="py-name">findall</tt><tt class="py-op">(</tt><tt class="py-name">phrases</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> </tt>
<a name="L219"></a><tt class="py-lineno">219</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">words</tt><tt class="py-op">)</tt> <tt class="py-op">&gt;</tt> <tt class="py-number">1</tt><tt class="py-op">:</tt> </tt>
<a name="L220"></a><tt class="py-lineno">220</tt>  <tt class="py-line">                    <tt class="py-name">tags</tt><tt class="py-op">.</tt><tt class="py-name">append</tt><tt class="py-op">(</tt><tt id="link-11" class="py-name"><a title="tagger.Tag" class="py-name" href="#" onclick="return doclink('link-11', 'Tag', 'link-0');">Tag</a></tt><tt class="py-op">(</tt><tt class="py-name">words</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">lower</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L221"></a><tt class="py-lineno">221</tt>  <tt class="py-line">                    <tt class="py-keyword">for</tt> <tt class="py-name">w</tt> <tt class="py-keyword">in</tt> <tt class="py-name">words</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">:</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L222"></a><tt class="py-lineno">222</tt>  <tt class="py-line">                        <tt class="py-name">tags</tt><tt class="py-op">.</tt><tt class="py-name">append</tt><tt class="py-op">(</tt><tt id="link-12" class="py-name"><a title="tagger.Tag" class="py-name" href="#" onclick="return doclink('link-12', 'Tag', 'link-0');">Tag</a></tt><tt class="py-op">(</tt><tt class="py-name">w</tt><tt class="py-op">.</tt><tt class="py-name">lower</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-name">proper</tt><tt class="py-op">=</tt><tt class="py-name">w</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">isupper</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L223"></a><tt class="py-lineno">223</tt>  <tt class="py-line">                    <tt class="py-name">tags</tt><tt class="py-op">.</tt><tt class="py-name">append</tt><tt class="py-op">(</tt><tt id="link-13" class="py-name"><a title="tagger.Tag" class="py-name" href="#" onclick="return doclink('link-13', 'Tag', 'link-0');">Tag</a></tt><tt class="py-op">(</tt><tt class="py-name">words</tt><tt class="py-op">[</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">lower</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> </tt>
<a name="L224"></a><tt class="py-lineno">224</tt>  <tt class="py-line">                                    <tt class="py-name">proper</tt><tt class="py-op">=</tt><tt class="py-name">words</tt><tt class="py-op">[</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">isupper</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> </tt>
<a name="L225"></a><tt class="py-lineno">225</tt>  <tt class="py-line">                                    <tt class="py-name">terminal</tt><tt class="py-op">=</tt><tt class="py-name">True</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L226"></a><tt class="py-lineno">226</tt>  <tt class="py-line">                <tt class="py-keyword">elif</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">words</tt><tt class="py-op">)</tt> <tt class="py-op">==</tt> <tt class="py-number">1</tt><tt class="py-op">:</tt> </tt>
<a name="L227"></a><tt class="py-lineno">227</tt>  <tt class="py-line">                    <tt class="py-name">tags</tt><tt class="py-op">.</tt><tt class="py-name">append</tt><tt class="py-op">(</tt><tt id="link-14" class="py-name"><a title="tagger.Tag" class="py-name" href="#" onclick="return doclink('link-14', 'Tag', 'link-0');">Tag</a></tt><tt class="py-op">(</tt><tt class="py-name">words</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">lower</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-name">terminal</tt><tt class="py-op">=</tt><tt class="py-name">True</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L228"></a><tt class="py-lineno">228</tt>  <tt class="py-line"> </tt>
<a name="L229"></a><tt class="py-lineno">229</tt>  <tt class="py-line">            <tt class="py-comment"># following phrases</tt> </tt>
<a name="L230"></a><tt class="py-lineno">230</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">phr</tt> <tt class="py-keyword">in</tt> <tt class="py-name">phrases</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">:</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L231"></a><tt class="py-lineno">231</tt>  <tt class="py-line">                <tt class="py-name">words</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-15" class="py-name"><a title="tagger.Reader.match_words" class="py-name" href="#" onclick="return doclink('link-15', 'match_words', 'link-6');">match_words</a></tt><tt class="py-op">.</tt><tt class="py-name">findall</tt><tt class="py-op">(</tt><tt class="py-name">phr</tt><tt class="py-op">)</tt> </tt>
<a name="L232"></a><tt class="py-lineno">232</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">words</tt><tt class="py-op">)</tt> <tt class="py-op">&gt;</tt> <tt class="py-number">1</tt><tt class="py-op">:</tt> </tt>
<a name="L233"></a><tt class="py-lineno">233</tt>  <tt class="py-line">                    <tt class="py-keyword">for</tt> <tt class="py-name">w</tt> <tt class="py-keyword">in</tt> <tt class="py-name">words</tt><tt class="py-op">[</tt><tt class="py-op">:</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L234"></a><tt class="py-lineno">234</tt>  <tt class="py-line">                        <tt class="py-name">tags</tt><tt class="py-op">.</tt><tt class="py-name">append</tt><tt class="py-op">(</tt><tt id="link-16" class="py-name"><a title="tagger.Tag" class="py-name" href="#" onclick="return doclink('link-16', 'Tag', 'link-0');">Tag</a></tt><tt class="py-op">(</tt><tt class="py-name">w</tt><tt class="py-op">.</tt><tt class="py-name">lower</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-name">proper</tt><tt class="py-op">=</tt><tt class="py-name">w</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">isupper</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L235"></a><tt class="py-lineno">235</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">words</tt><tt class="py-op">)</tt> <tt class="py-op">&gt;</tt> <tt class="py-number">0</tt><tt class="py-op">:</tt> </tt>
<a name="L236"></a><tt class="py-lineno">236</tt>  <tt class="py-line">                    <tt class="py-name">tags</tt><tt class="py-op">.</tt><tt class="py-name">append</tt><tt class="py-op">(</tt><tt id="link-17" class="py-name"><a title="tagger.Tag" class="py-name" href="#" onclick="return doclink('link-17', 'Tag', 'link-0');">Tag</a></tt><tt class="py-op">(</tt><tt class="py-name">words</tt><tt class="py-op">[</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">lower</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> </tt>
<a name="L237"></a><tt class="py-lineno">237</tt>  <tt class="py-line">                                    <tt class="py-name">proper</tt><tt class="py-op">=</tt><tt class="py-name">words</tt><tt class="py-op">[</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">isupper</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> </tt>
<a name="L238"></a><tt class="py-lineno">238</tt>  <tt class="py-line">                                    <tt class="py-name">terminal</tt><tt class="py-op">=</tt><tt class="py-name">True</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L239"></a><tt class="py-lineno">239</tt>  <tt class="py-line"> </tt>
<a name="L240"></a><tt class="py-lineno">240</tt>  <tt class="py-line">        <tt class="py-keyword">return</tt> <tt class="py-name">tags</tt> </tt>
</div><a name="L241"></a><tt class="py-lineno">241</tt>  <tt class="py-line"> </tt>
<a name="Reader.preprocess"></a><div id="Reader.preprocess-def"><a name="L242"></a><tt class="py-lineno">242</tt> <a class="py-toggle" href="#" id="Reader.preprocess-toggle" onclick="return toggle('Reader.preprocess');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="tagger.Reader-class.html#preprocess">preprocess</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">text</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="Reader.preprocess-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="Reader.preprocess-expanded"><a name="L243"></a><tt class="py-lineno">243</tt>  <tt class="py-line">        <tt class="py-docstring">'''</tt> </tt>
<a name="L244"></a><tt class="py-lineno">244</tt>  <tt class="py-line"><tt class="py-docstring">        @param text: a string containing the text document to perform any</tt> </tt>
<a name="L245"></a><tt class="py-lineno">245</tt>  <tt class="py-line"><tt class="py-docstring">                     required transformation before splitting</tt> </tt>
<a name="L246"></a><tt class="py-lineno">246</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L247"></a><tt class="py-lineno">247</tt>  <tt class="py-line"><tt class="py-docstring">        @returns:    the processed text</tt> </tt>
<a name="L248"></a><tt class="py-lineno">248</tt>  <tt class="py-line"><tt class="py-docstring">        '''</tt> </tt>
<a name="L249"></a><tt class="py-lineno">249</tt>  <tt class="py-line">         </tt>
<a name="L250"></a><tt class="py-lineno">250</tt>  <tt class="py-line">        <tt class="py-name">text</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-18" class="py-name"><a title="tagger.Reader.match_apostrophes" class="py-name" href="#" onclick="return doclink('link-18', 'match_apostrophes', 'link-3');">match_apostrophes</a></tt><tt class="py-op">.</tt><tt class="py-name">sub</tt><tt class="py-op">(</tt><tt class="py-string">'\''</tt><tt class="py-op">,</tt> <tt class="py-name">text</tt><tt class="py-op">)</tt> </tt>
<a name="L251"></a><tt class="py-lineno">251</tt>  <tt class="py-line">        <tt class="py-keyword">return</tt> <tt class="py-name">text</tt> </tt>
</div></div><a name="L252"></a><tt class="py-lineno">252</tt>  <tt class="py-line"> </tt>
<a name="L253"></a><tt class="py-lineno">253</tt>  <tt class="py-line">     </tt>
<a name="Stemmer"></a><div id="Stemmer-def"><a name="L254"></a><tt class="py-lineno">254</tt> <a class="py-toggle" href="#" id="Stemmer-toggle" onclick="return toggle('Stemmer');">-</a><tt class="py-line"><tt class="py-keyword">class</tt> <a class="py-def-name" href="tagger.Stemmer-class.html">Stemmer</a><tt class="py-op">:</tt> </tt>
</div><div id="Stemmer-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="Stemmer-expanded"><a name="L255"></a><tt class="py-lineno">255</tt>  <tt class="py-line">    <tt class="py-docstring">'''</tt> </tt>
<a name="L256"></a><tt class="py-lineno">256</tt>  <tt class="py-line"><tt class="py-docstring">    Class for extracting the stem of a word</tt> </tt>
<a name="L257"></a><tt class="py-lineno">257</tt>  <tt class="py-line"><tt class="py-docstring">    </tt> </tt>
<a name="L258"></a><tt class="py-lineno">258</tt>  <tt class="py-line"><tt class="py-docstring">    (by default it uses a simple open-source implementation of Porter's</tt> </tt>
<a name="L259"></a><tt class="py-lineno">259</tt>  <tt class="py-line"><tt class="py-docstring">    algorithm; this can be improved a lot, so experimenting with different ones</tt> </tt>
<a name="L260"></a><tt class="py-lineno">260</tt>  <tt class="py-line"><tt class="py-docstring">    is advisable; nltk.stem provides different algorithms for many languages)</tt> </tt>
<a name="L261"></a><tt class="py-lineno">261</tt>  <tt class="py-line"><tt class="py-docstring">    '''</tt> </tt>
<a name="L262"></a><tt class="py-lineno">262</tt>  <tt class="py-line"> </tt>
<a name="L263"></a><tt class="py-lineno">263</tt>  <tt class="py-line">    <tt id="link-19" class="py-name" targets="Variable tagger.Stemmer.match_contractions=tagger.Stemmer-class.html#match_contractions"><a title="tagger.Stemmer.match_contractions" class="py-name" href="#" onclick="return doclink('link-19', 'match_contractions', 'link-19');">match_contractions</a></tt> <tt class="py-op">=</tt> <tt class="py-name">re</tt><tt class="py-op">.</tt><tt class="py-name">compile</tt><tt class="py-op">(</tt><tt class="py-string">'(\w+)\'(m|re|d|ve|s|ll|t)?'</tt><tt class="py-op">)</tt> </tt>
<a name="L264"></a><tt class="py-lineno">264</tt>  <tt class="py-line"> </tt>
<a name="Stemmer.__init__"></a><div id="Stemmer.__init__-def"><a name="L265"></a><tt class="py-lineno">265</tt> <a class="py-toggle" href="#" id="Stemmer.__init__-toggle" onclick="return toggle('Stemmer.__init__');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="tagger.Stemmer-class.html#__init__">__init__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">stemmer</tt><tt class="py-op">=</tt><tt class="py-name">None</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="Stemmer.__init__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="Stemmer.__init__-expanded"><a name="L266"></a><tt class="py-lineno">266</tt>  <tt class="py-line">        <tt class="py-docstring">'''</tt> </tt>
<a name="L267"></a><tt class="py-lineno">267</tt>  <tt class="py-line"><tt class="py-docstring">        @param stemmer: an object or module with a 'stem' method (defaults to</tt> </tt>
<a name="L268"></a><tt class="py-lineno">268</tt>  <tt class="py-line"><tt class="py-docstring">                        stemming.porter2)</tt> </tt>
<a name="L269"></a><tt class="py-lineno">269</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L270"></a><tt class="py-lineno">270</tt>  <tt class="py-line"><tt class="py-docstring">        @returns: a new L{Stemmer} object</tt> </tt>
<a name="L271"></a><tt class="py-lineno">271</tt>  <tt class="py-line"><tt class="py-docstring">        '''</tt> </tt>
<a name="L272"></a><tt class="py-lineno">272</tt>  <tt class="py-line">         </tt>
<a name="L273"></a><tt class="py-lineno">273</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-keyword">not</tt> <tt class="py-name">stemmer</tt><tt class="py-op">:</tt> </tt>
<a name="L274"></a><tt class="py-lineno">274</tt>  <tt class="py-line">            <tt class="py-keyword">from</tt> <tt class="py-name">stemming</tt> <tt class="py-keyword">import</tt> <tt class="py-name">porter2</tt> </tt>
<a name="L275"></a><tt class="py-lineno">275</tt>  <tt class="py-line">            <tt class="py-name">stemmer</tt> <tt class="py-op">=</tt> <tt class="py-name">porter2</tt> </tt>
<a name="L276"></a><tt class="py-lineno">276</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">stemmer</tt> <tt class="py-op">=</tt> <tt class="py-name">stemmer</tt> </tt>
</div><a name="L277"></a><tt class="py-lineno">277</tt>  <tt class="py-line"> </tt>
<a name="Stemmer.__call__"></a><div id="Stemmer.__call__-def"><a name="L278"></a><tt class="py-lineno">278</tt> <a class="py-toggle" href="#" id="Stemmer.__call__-toggle" onclick="return toggle('Stemmer.__call__');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="tagger.Stemmer-class.html#__call__">__call__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">tag</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="Stemmer.__call__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="Stemmer.__call__-expanded"><a name="L279"></a><tt class="py-lineno">279</tt>  <tt class="py-line">        <tt class="py-docstring">'''</tt> </tt>
<a name="L280"></a><tt class="py-lineno">280</tt>  <tt class="py-line"><tt class="py-docstring">        @param tag: the tag to be stemmed</tt> </tt>
<a name="L281"></a><tt class="py-lineno">281</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L282"></a><tt class="py-lineno">282</tt>  <tt class="py-line"><tt class="py-docstring">        @returns: the stemmed tag</tt> </tt>
<a name="L283"></a><tt class="py-lineno">283</tt>  <tt class="py-line"><tt class="py-docstring">        '''</tt> </tt>
<a name="L284"></a><tt class="py-lineno">284</tt>  <tt class="py-line"> </tt>
<a name="L285"></a><tt class="py-lineno">285</tt>  <tt class="py-line">        <tt class="py-name">string</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-20" class="py-name"><a title="tagger.Reader.preprocess
tagger.Stemmer.preprocess" class="py-name" href="#" onclick="return doclink('link-20', 'preprocess', 'link-7');">preprocess</a></tt><tt class="py-op">(</tt><tt class="py-name">tag</tt><tt class="py-op">.</tt><tt class="py-name">string</tt><tt class="py-op">)</tt> </tt>
<a name="L286"></a><tt class="py-lineno">286</tt>  <tt class="py-line">        <tt class="py-name">tag</tt><tt class="py-op">.</tt><tt class="py-name">stem</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">stemmer</tt><tt class="py-op">.</tt><tt class="py-name">stem</tt><tt class="py-op">(</tt><tt class="py-name">string</tt><tt class="py-op">)</tt> </tt>
<a name="L287"></a><tt class="py-lineno">287</tt>  <tt class="py-line">        <tt class="py-keyword">return</tt> <tt class="py-name">tag</tt>     </tt>
</div><a name="L288"></a><tt class="py-lineno">288</tt>  <tt class="py-line">         </tt>
<a name="Stemmer.preprocess"></a><div id="Stemmer.preprocess-def"><a name="L289"></a><tt class="py-lineno">289</tt> <a class="py-toggle" href="#" id="Stemmer.preprocess-toggle" onclick="return toggle('Stemmer.preprocess');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="tagger.Stemmer-class.html#preprocess">preprocess</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">string</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="Stemmer.preprocess-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="Stemmer.preprocess-expanded"><a name="L290"></a><tt class="py-lineno">290</tt>  <tt class="py-line">        <tt class="py-docstring">'''</tt> </tt>
<a name="L291"></a><tt class="py-lineno">291</tt>  <tt class="py-line"><tt class="py-docstring">        @param string: a string to be treated before passing it to the stemmer</tt> </tt>
<a name="L292"></a><tt class="py-lineno">292</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L293"></a><tt class="py-lineno">293</tt>  <tt class="py-line"><tt class="py-docstring">        @returns: the processed string</tt> </tt>
<a name="L294"></a><tt class="py-lineno">294</tt>  <tt class="py-line"><tt class="py-docstring">        '''</tt> </tt>
<a name="L295"></a><tt class="py-lineno">295</tt>  <tt class="py-line"> </tt>
<a name="L296"></a><tt class="py-lineno">296</tt>  <tt class="py-line">        <tt class="py-comment"># get rid of contractions and possessive forms</tt> </tt>
<a name="L297"></a><tt class="py-lineno">297</tt>  <tt class="py-line">        <tt class="py-name">match</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-21" class="py-name"><a title="tagger.Stemmer.match_contractions" class="py-name" href="#" onclick="return doclink('link-21', 'match_contractions', 'link-19');">match_contractions</a></tt><tt class="py-op">.</tt><tt class="py-name">match</tt><tt class="py-op">(</tt><tt class="py-name">string</tt><tt class="py-op">)</tt> </tt>
<a name="L298"></a><tt class="py-lineno">298</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-name">match</tt><tt class="py-op">:</tt> <tt class="py-keyword">return</tt> <tt class="py-name">match</tt><tt class="py-op">.</tt><tt class="py-name">group</tt><tt class="py-op">(</tt><tt class="py-number">1</tt><tt class="py-op">)</tt> </tt>
<a name="L299"></a><tt class="py-lineno">299</tt>  <tt class="py-line">        <tt class="py-keyword">else</tt><tt class="py-op">:</tt> <tt class="py-keyword">return</tt> <tt class="py-name">string</tt> </tt>
</div></div><a name="L300"></a><tt class="py-lineno">300</tt>  <tt class="py-line">     </tt>
<a name="L301"></a><tt class="py-lineno">301</tt>  <tt class="py-line"> </tt>
<a name="Rater"></a><div id="Rater-def"><a name="L302"></a><tt class="py-lineno">302</tt> <a class="py-toggle" href="#" id="Rater-toggle" onclick="return toggle('Rater');">-</a><tt class="py-line"><tt class="py-keyword">class</tt> <a class="py-def-name" href="tagger.Rater-class.html">Rater</a><tt class="py-op">:</tt> </tt>
</div><div id="Rater-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="Rater-expanded"><a name="L303"></a><tt class="py-lineno">303</tt>  <tt class="py-line">    <tt class="py-docstring">'''</tt> </tt>
<a name="L304"></a><tt class="py-lineno">304</tt>  <tt class="py-line"><tt class="py-docstring">    Class for estimating the relevance of tags</tt> </tt>
<a name="L305"></a><tt class="py-lineno">305</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L306"></a><tt class="py-lineno">306</tt>  <tt class="py-line"><tt class="py-docstring">    (the default implementation uses TF (term frequency) multiplied by weight,</tt> </tt>
<a name="L307"></a><tt class="py-lineno">307</tt>  <tt class="py-line"><tt class="py-docstring">    but any other reasonable measure is fine; a quite rudimental heuristic</tt> </tt>
<a name="L308"></a><tt class="py-lineno">308</tt>  <tt class="py-line"><tt class="py-docstring">    tries to discard redundant tags)</tt> </tt>
<a name="L309"></a><tt class="py-lineno">309</tt>  <tt class="py-line"><tt class="py-docstring">    '''</tt> </tt>
<a name="L310"></a><tt class="py-lineno">310</tt>  <tt class="py-line"> </tt>
<a name="Rater.__init__"></a><div id="Rater.__init__-def"><a name="L311"></a><tt class="py-lineno">311</tt> <a class="py-toggle" href="#" id="Rater.__init__-toggle" onclick="return toggle('Rater.__init__');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="tagger.Rater-class.html#__init__">__init__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">weights</tt><tt class="py-op">,</tt> <tt class="py-param">multitag_size</tt><tt class="py-op">=</tt><tt class="py-number">3</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="Rater.__init__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="Rater.__init__-expanded"><a name="L312"></a><tt class="py-lineno">312</tt>  <tt class="py-line">        <tt class="py-docstring">'''</tt> </tt>
<a name="L313"></a><tt class="py-lineno">313</tt>  <tt class="py-line"><tt class="py-docstring">        @param weights:       a dictionary of weights normalized in the</tt> </tt>
<a name="L314"></a><tt class="py-lineno">314</tt>  <tt class="py-line"><tt class="py-docstring">                              interval [0,1]</tt> </tt>
<a name="L315"></a><tt class="py-lineno">315</tt>  <tt class="py-line"><tt class="py-docstring">        @param multitag_size: maximum size of tags formed by multiple unit</tt> </tt>
<a name="L316"></a><tt class="py-lineno">316</tt>  <tt class="py-line"><tt class="py-docstring">                              tags</tt> </tt>
<a name="L317"></a><tt class="py-lineno">317</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L318"></a><tt class="py-lineno">318</tt>  <tt class="py-line"><tt class="py-docstring">        @returns: a new L{Rater} object</tt> </tt>
<a name="L319"></a><tt class="py-lineno">319</tt>  <tt class="py-line"><tt class="py-docstring">        '''</tt> </tt>
<a name="L320"></a><tt class="py-lineno">320</tt>  <tt class="py-line">         </tt>
<a name="L321"></a><tt class="py-lineno">321</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">weights</tt> <tt class="py-op">=</tt> <tt class="py-name">weights</tt> </tt>
<a name="L322"></a><tt class="py-lineno">322</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">multitag_size</tt> <tt class="py-op">=</tt> <tt class="py-name">multitag_size</tt> </tt>
</div><a name="L323"></a><tt class="py-lineno">323</tt>  <tt class="py-line">         </tt>
<a name="Rater.__call__"></a><div id="Rater.__call__-def"><a name="L324"></a><tt class="py-lineno">324</tt> <a class="py-toggle" href="#" id="Rater.__call__-toggle" onclick="return toggle('Rater.__call__');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="tagger.Rater-class.html#__call__">__call__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">tags</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="Rater.__call__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="Rater.__call__-expanded"><a name="L325"></a><tt class="py-lineno">325</tt>  <tt class="py-line">        <tt class="py-docstring">'''</tt> </tt>
<a name="L326"></a><tt class="py-lineno">326</tt>  <tt class="py-line"><tt class="py-docstring">        @param tags: a list of (preferably stemmed) tags</tt> </tt>
<a name="L327"></a><tt class="py-lineno">327</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L328"></a><tt class="py-lineno">328</tt>  <tt class="py-line"><tt class="py-docstring">        @returns: a list of unique (multi)tags sorted by relevance</tt> </tt>
<a name="L329"></a><tt class="py-lineno">329</tt>  <tt class="py-line"><tt class="py-docstring">        '''</tt> </tt>
<a name="L330"></a><tt class="py-lineno">330</tt>  <tt class="py-line"> </tt>
<a name="L331"></a><tt class="py-lineno">331</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-22" class="py-name" targets="Method tagger.Rater.rate_tags()=tagger.Rater-class.html#rate_tags"><a title="tagger.Rater.rate_tags" class="py-name" href="#" onclick="return doclink('link-22', 'rate_tags', 'link-22');">rate_tags</a></tt><tt class="py-op">(</tt><tt class="py-name">tags</tt><tt class="py-op">)</tt> </tt>
<a name="L332"></a><tt class="py-lineno">332</tt>  <tt class="py-line">        <tt class="py-name">multitags</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-23" class="py-name" targets="Method tagger.Rater.create_multitags()=tagger.Rater-class.html#create_multitags"><a title="tagger.Rater.create_multitags" class="py-name" href="#" onclick="return doclink('link-23', 'create_multitags', 'link-23');">create_multitags</a></tt><tt class="py-op">(</tt><tt class="py-name">tags</tt><tt class="py-op">)</tt> </tt>
<a name="L333"></a><tt class="py-lineno">333</tt>  <tt class="py-line"> </tt>
<a name="L334"></a><tt class="py-lineno">334</tt>  <tt class="py-line">        <tt class="py-comment"># keep most frequent version of each tag</tt> </tt>
<a name="L335"></a><tt class="py-lineno">335</tt>  <tt class="py-line">        <tt class="py-name">clusters</tt> <tt class="py-op">=</tt> <tt class="py-name">collections</tt><tt class="py-op">.</tt><tt class="py-name">defaultdict</tt><tt class="py-op">(</tt><tt class="py-name">collections</tt><tt class="py-op">.</tt><tt class="py-name">Counter</tt><tt class="py-op">)</tt> </tt>
<a name="L336"></a><tt class="py-lineno">336</tt>  <tt class="py-line">        <tt class="py-name">proper</tt> <tt class="py-op">=</tt> <tt class="py-name">collections</tt><tt class="py-op">.</tt><tt class="py-name">defaultdict</tt><tt class="py-op">(</tt><tt class="py-name">int</tt><tt class="py-op">)</tt> </tt>
<a name="L337"></a><tt class="py-lineno">337</tt>  <tt class="py-line">        <tt class="py-name">ratings</tt> <tt class="py-op">=</tt> <tt class="py-name">collections</tt><tt class="py-op">.</tt><tt class="py-name">defaultdict</tt><tt class="py-op">(</tt><tt class="py-name">float</tt><tt class="py-op">)</tt> </tt>
<a name="L338"></a><tt class="py-lineno">338</tt>  <tt class="py-line">         </tt>
<a name="L339"></a><tt class="py-lineno">339</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">t</tt> <tt class="py-keyword">in</tt> <tt class="py-name">multitags</tt><tt class="py-op">:</tt> </tt>
<a name="L340"></a><tt class="py-lineno">340</tt>  <tt class="py-line">            <tt class="py-name">clusters</tt><tt class="py-op">[</tt><tt class="py-name">t</tt><tt class="py-op">]</tt><tt class="py-op">[</tt><tt class="py-name">t</tt><tt class="py-op">.</tt><tt class="py-name">string</tt><tt class="py-op">]</tt> <tt class="py-op">+=</tt> <tt class="py-number">1</tt> </tt>
<a name="L341"></a><tt class="py-lineno">341</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">t</tt><tt class="py-op">.</tt><tt class="py-name">proper</tt><tt class="py-op">:</tt> </tt>
<a name="L342"></a><tt class="py-lineno">342</tt>  <tt class="py-line">                <tt class="py-name">proper</tt><tt class="py-op">[</tt><tt class="py-name">t</tt><tt class="py-op">]</tt> <tt class="py-op">+=</tt> <tt class="py-number">1</tt> </tt>
<a name="L343"></a><tt class="py-lineno">343</tt>  <tt class="py-line">                <tt class="py-name">ratings</tt><tt class="py-op">[</tt><tt class="py-name">t</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">max</tt><tt class="py-op">(</tt><tt class="py-name">ratings</tt><tt class="py-op">[</tt><tt class="py-name">t</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-name">t</tt><tt class="py-op">.</tt><tt class="py-name">rating</tt><tt class="py-op">)</tt> </tt>
<a name="L344"></a><tt class="py-lineno">344</tt>  <tt class="py-line"> </tt>
<a name="L345"></a><tt class="py-lineno">345</tt>  <tt class="py-line">        <tt class="py-name">term_count</tt> <tt class="py-op">=</tt> <tt class="py-name">collections</tt><tt class="py-op">.</tt><tt class="py-name">Counter</tt><tt class="py-op">(</tt><tt class="py-name">multitags</tt><tt class="py-op">)</tt> </tt>
<a name="L346"></a><tt class="py-lineno">346</tt>  <tt class="py-line">                 </tt>
<a name="L347"></a><tt class="py-lineno">347</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">t</tt><tt class="py-op">,</tt> <tt class="py-name">cnt</tt> <tt class="py-keyword">in</tt> <tt class="py-name">term_count</tt><tt class="py-op">.</tt><tt class="py-name">iteritems</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L348"></a><tt class="py-lineno">348</tt>  <tt class="py-line">            <tt class="py-name">t</tt><tt class="py-op">.</tt><tt class="py-name">string</tt> <tt class="py-op">=</tt> <tt class="py-name">clusters</tt><tt class="py-op">[</tt><tt class="py-name">t</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">most_common</tt><tt class="py-op">(</tt><tt class="py-number">1</tt><tt class="py-op">)</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt> </tt>
<a name="L349"></a><tt class="py-lineno">349</tt>  <tt class="py-line">            <tt class="py-name">proper_freq</tt> <tt class="py-op">=</tt> <tt class="py-name">proper</tt><tt class="py-op">[</tt><tt class="py-name">t</tt><tt class="py-op">]</tt> <tt class="py-op">/</tt> <tt class="py-name">float</tt><tt class="py-op">(</tt><tt class="py-name">cnt</tt><tt class="py-op">)</tt> </tt>
<a name="L350"></a><tt class="py-lineno">350</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">proper_freq</tt> <tt class="py-op">&gt;=</tt> <tt class="py-number">0.5</tt><tt class="py-op">:</tt> </tt>
<a name="L351"></a><tt class="py-lineno">351</tt>  <tt class="py-line">                <tt class="py-name">t</tt><tt class="py-op">.</tt><tt class="py-name">proper</tt> <tt class="py-op">=</tt> <tt class="py-name">True</tt> </tt>
<a name="L352"></a><tt class="py-lineno">352</tt>  <tt class="py-line">                <tt class="py-name">t</tt><tt class="py-op">.</tt><tt class="py-name">rating</tt> <tt class="py-op">=</tt> <tt class="py-name">ratings</tt><tt class="py-op">[</tt><tt class="py-name">t</tt><tt class="py-op">]</tt> </tt>
<a name="L353"></a><tt class="py-lineno">353</tt>  <tt class="py-line">         </tt>
<a name="L354"></a><tt class="py-lineno">354</tt>  <tt class="py-line">        <tt class="py-comment"># purge duplicates and one-character tags</tt> </tt>
<a name="L355"></a><tt class="py-lineno">355</tt>  <tt class="py-line">        <tt class="py-name">unique_tags</tt> <tt class="py-op">=</tt> <tt class="py-name">set</tt><tt class="py-op">(</tt><tt class="py-name">t</tt> <tt class="py-keyword">for</tt> <tt class="py-name">t</tt> <tt class="py-keyword">in</tt> <tt class="py-name">term_count</tt> <tt class="py-keyword">if</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">t</tt><tt class="py-op">.</tt><tt class="py-name">string</tt><tt class="py-op">)</tt> <tt class="py-op">&gt;</tt> <tt class="py-number">1</tt><tt class="py-op">)</tt> </tt>
<a name="L356"></a><tt class="py-lineno">356</tt>  <tt class="py-line">        <tt class="py-comment"># remove redundant tags</tt> </tt>
<a name="L357"></a><tt class="py-lineno">357</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">t</tt><tt class="py-op">,</tt> <tt class="py-name">cnt</tt> <tt class="py-keyword">in</tt> <tt class="py-name">term_count</tt><tt class="py-op">.</tt><tt class="py-name">iteritems</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L358"></a><tt class="py-lineno">358</tt>  <tt class="py-line">            <tt class="py-name">words</tt> <tt class="py-op">=</tt> <tt class="py-name">t</tt><tt class="py-op">.</tt><tt class="py-name">stem</tt><tt class="py-op">.</tt><tt class="py-name">split</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L359"></a><tt class="py-lineno">359</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">l</tt> <tt class="py-keyword">in</tt> <tt class="py-name">xrange</tt><tt class="py-op">(</tt><tt class="py-number">1</tt><tt class="py-op">,</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">words</tt><tt class="py-op">)</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L360"></a><tt class="py-lineno">360</tt>  <tt class="py-line">                <tt class="py-keyword">for</tt> <tt class="py-name">i</tt> <tt class="py-keyword">in</tt> <tt class="py-name">xrange</tt><tt class="py-op">(</tt><tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">words</tt><tt class="py-op">)</tt> <tt class="py-op">-</tt> <tt class="py-name">l</tt> <tt class="py-op">+</tt> <tt class="py-number">1</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L361"></a><tt class="py-lineno">361</tt>  <tt class="py-line">                    <tt class="py-name">s</tt> <tt class="py-op">=</tt> <tt id="link-24" class="py-name"><a title="tagger.Tag" class="py-name" href="#" onclick="return doclink('link-24', 'Tag', 'link-0');">Tag</a></tt><tt class="py-op">(</tt><tt class="py-string">' '</tt><tt class="py-op">.</tt><tt class="py-name">join</tt><tt class="py-op">(</tt><tt class="py-name">words</tt><tt class="py-op">[</tt><tt class="py-name">i</tt><tt class="py-op">:</tt><tt class="py-name">i</tt> <tt class="py-op">+</tt> <tt class="py-name">l</tt><tt class="py-op">]</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L362"></a><tt class="py-lineno">362</tt>  <tt class="py-line">                    <tt class="py-name">relative_freq</tt> <tt class="py-op">=</tt> <tt class="py-name">float</tt><tt class="py-op">(</tt><tt class="py-name">cnt</tt><tt class="py-op">)</tt> <tt class="py-op">/</tt> <tt class="py-name">term_count</tt><tt class="py-op">[</tt><tt class="py-name">s</tt><tt class="py-op">]</tt> </tt>
<a name="L363"></a><tt class="py-lineno">363</tt>  <tt class="py-line">                    <tt class="py-keyword">if</tt> <tt class="py-op">(</tt><tt class="py-op">(</tt><tt class="py-name">relative_freq</tt> <tt class="py-op">==</tt> <tt class="py-number">1.0</tt> <tt class="py-keyword">and</tt> <tt class="py-name">t</tt><tt class="py-op">.</tt><tt class="py-name">proper</tt><tt class="py-op">)</tt> <tt class="py-keyword">or</tt> </tt>
<a name="L364"></a><tt class="py-lineno">364</tt>  <tt class="py-line">                        <tt class="py-op">(</tt><tt class="py-name">relative_freq</tt> <tt class="py-op">&gt;=</tt> <tt class="py-number">0.5</tt> <tt class="py-keyword">and</tt> <tt class="py-name">t</tt><tt class="py-op">.</tt><tt class="py-name">rating</tt> <tt class="py-op">&gt;</tt> <tt class="py-number">0.0</tt><tt class="py-op">)</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L365"></a><tt class="py-lineno">365</tt>  <tt class="py-line">                        <tt class="py-name">unique_tags</tt><tt class="py-op">.</tt><tt class="py-name">discard</tt><tt class="py-op">(</tt><tt class="py-name">s</tt><tt class="py-op">)</tt> </tt>
<a name="L366"></a><tt class="py-lineno">366</tt>  <tt class="py-line">                    <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L367"></a><tt class="py-lineno">367</tt>  <tt class="py-line">                        <tt class="py-name">unique_tags</tt><tt class="py-op">.</tt><tt class="py-name">discard</tt><tt class="py-op">(</tt><tt class="py-name">t</tt><tt class="py-op">)</tt> </tt>
<a name="L368"></a><tt class="py-lineno">368</tt>  <tt class="py-line">         </tt>
<a name="L369"></a><tt class="py-lineno">369</tt>  <tt class="py-line">        <tt class="py-keyword">return</tt> <tt class="py-name">sorted</tt><tt class="py-op">(</tt><tt class="py-name">unique_tags</tt><tt class="py-op">)</tt> </tt>
</div><a name="L370"></a><tt class="py-lineno">370</tt>  <tt class="py-line"> </tt>
<a name="Rater.rate_tags"></a><div id="Rater.rate_tags-def"><a name="L371"></a><tt class="py-lineno">371</tt> <a class="py-toggle" href="#" id="Rater.rate_tags-toggle" onclick="return toggle('Rater.rate_tags');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="tagger.Rater-class.html#rate_tags">rate_tags</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">tags</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="Rater.rate_tags-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="Rater.rate_tags-expanded"><a name="L372"></a><tt class="py-lineno">372</tt>  <tt class="py-line">        <tt class="py-docstring">'''</tt> </tt>
<a name="L373"></a><tt class="py-lineno">373</tt>  <tt class="py-line"><tt class="py-docstring">        @param tags: a list of tags to be assigned a rating</tt> </tt>
<a name="L374"></a><tt class="py-lineno">374</tt>  <tt class="py-line"><tt class="py-docstring">        '''</tt> </tt>
<a name="L375"></a><tt class="py-lineno">375</tt>  <tt class="py-line">         </tt>
<a name="L376"></a><tt class="py-lineno">376</tt>  <tt class="py-line">        <tt class="py-name">term_count</tt> <tt class="py-op">=</tt> <tt class="py-name">collections</tt><tt class="py-op">.</tt><tt class="py-name">Counter</tt><tt class="py-op">(</tt><tt class="py-name">tags</tt><tt class="py-op">)</tt> </tt>
<a name="L377"></a><tt class="py-lineno">377</tt>  <tt class="py-line">         </tt>
<a name="L378"></a><tt class="py-lineno">378</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">t</tt> <tt class="py-keyword">in</tt> <tt class="py-name">tags</tt><tt class="py-op">:</tt> </tt>
<a name="L379"></a><tt class="py-lineno">379</tt>  <tt class="py-line">            <tt class="py-comment"># rating of a single tag is term frequency * weight</tt> </tt>
<a name="L380"></a><tt class="py-lineno">380</tt>  <tt class="py-line">            <tt class="py-name">t</tt><tt class="py-op">.</tt><tt class="py-name">rating</tt> <tt class="py-op">=</tt> <tt class="py-name">float</tt><tt class="py-op">(</tt><tt class="py-name">term_count</tt><tt class="py-op">[</tt><tt class="py-name">t</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> <tt class="py-op">/</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">tags</tt><tt class="py-op">)</tt> <tt class="py-op">*</tt> \ </tt>
<a name="L381"></a><tt class="py-lineno">381</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">weights</tt><tt class="py-op">.</tt><tt class="py-name">get</tt><tt class="py-op">(</tt><tt class="py-name">t</tt><tt class="py-op">.</tt><tt class="py-name">stem</tt><tt class="py-op">,</tt> <tt class="py-number">1.0</tt><tt class="py-op">)</tt> </tt>
</div><a name="L382"></a><tt class="py-lineno">382</tt>  <tt class="py-line">     </tt>
<a name="Rater.create_multitags"></a><div id="Rater.create_multitags-def"><a name="L383"></a><tt class="py-lineno">383</tt> <a class="py-toggle" href="#" id="Rater.create_multitags-toggle" onclick="return toggle('Rater.create_multitags');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="tagger.Rater-class.html#create_multitags">create_multitags</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">tags</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="Rater.create_multitags-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="Rater.create_multitags-expanded"><a name="L384"></a><tt class="py-lineno">384</tt>  <tt class="py-line">        <tt class="py-docstring">'''</tt> </tt>
<a name="L385"></a><tt class="py-lineno">385</tt>  <tt class="py-line"><tt class="py-docstring">        @param tags: a list of tags (respecting the order in the text)</tt> </tt>
<a name="L386"></a><tt class="py-lineno">386</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L387"></a><tt class="py-lineno">387</tt>  <tt class="py-line"><tt class="py-docstring">        @returns: a list of multitags</tt> </tt>
<a name="L388"></a><tt class="py-lineno">388</tt>  <tt class="py-line"><tt class="py-docstring">        '''</tt> </tt>
<a name="L389"></a><tt class="py-lineno">389</tt>  <tt class="py-line">         </tt>
<a name="L390"></a><tt class="py-lineno">390</tt>  <tt class="py-line">        <tt class="py-name">multitags</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt class="py-op">]</tt> </tt>
<a name="L391"></a><tt class="py-lineno">391</tt>  <tt class="py-line">         </tt>
<a name="L392"></a><tt class="py-lineno">392</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">i</tt> <tt class="py-keyword">in</tt> <tt class="py-name">xrange</tt><tt class="py-op">(</tt><tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">tags</tt><tt class="py-op">)</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L393"></a><tt class="py-lineno">393</tt>  <tt class="py-line">            <tt class="py-name">t</tt> <tt class="py-op">=</tt> <tt id="link-25" class="py-name" targets="Class tagger.MultiTag=tagger.MultiTag-class.html"><a title="tagger.MultiTag" class="py-name" href="#" onclick="return doclink('link-25', 'MultiTag', 'link-25');">MultiTag</a></tt><tt class="py-op">(</tt><tt class="py-name">tags</tt><tt class="py-op">[</tt><tt class="py-name">i</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> </tt>
<a name="L394"></a><tt class="py-lineno">394</tt>  <tt class="py-line">            <tt class="py-name">multitags</tt><tt class="py-op">.</tt><tt class="py-name">append</tt><tt class="py-op">(</tt><tt class="py-name">t</tt><tt class="py-op">)</tt> </tt>
<a name="L395"></a><tt class="py-lineno">395</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">j</tt> <tt class="py-keyword">in</tt> <tt class="py-name">xrange</tt><tt class="py-op">(</tt><tt class="py-number">1</tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">multitag_size</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L396"></a><tt class="py-lineno">396</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">t</tt><tt class="py-op">.</tt><tt class="py-name">terminal</tt> <tt class="py-keyword">or</tt> <tt class="py-name">i</tt> <tt class="py-op">+</tt> <tt class="py-name">j</tt> <tt class="py-op">&gt;=</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">tags</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L397"></a><tt class="py-lineno">397</tt>  <tt class="py-line">                    <tt class="py-keyword">break</tt> </tt>
<a name="L398"></a><tt class="py-lineno">398</tt>  <tt class="py-line">                <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L399"></a><tt class="py-lineno">399</tt>  <tt class="py-line">                    <tt class="py-name">t</tt> <tt class="py-op">=</tt> <tt id="link-26" class="py-name"><a title="tagger.MultiTag" class="py-name" href="#" onclick="return doclink('link-26', 'MultiTag', 'link-25');">MultiTag</a></tt><tt class="py-op">(</tt><tt class="py-name">tags</tt><tt class="py-op">[</tt><tt class="py-name">i</tt> <tt class="py-op">+</tt> <tt class="py-name">j</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-name">t</tt><tt class="py-op">)</tt> </tt>
<a name="L400"></a><tt class="py-lineno">400</tt>  <tt class="py-line">                    <tt class="py-name">multitags</tt><tt class="py-op">.</tt><tt class="py-name">append</tt><tt class="py-op">(</tt><tt class="py-name">t</tt><tt class="py-op">)</tt> </tt>
<a name="L401"></a><tt class="py-lineno">401</tt>  <tt class="py-line"> </tt>
<a name="L402"></a><tt class="py-lineno">402</tt>  <tt class="py-line">        <tt class="py-keyword">return</tt> <tt class="py-name">multitags</tt> </tt>
</div></div><a name="L403"></a><tt class="py-lineno">403</tt>  <tt class="py-line">     </tt>
<a name="L404"></a><tt class="py-lineno">404</tt>  <tt class="py-line">     </tt>
<a name="Tagger"></a><div id="Tagger-def"><a name="L405"></a><tt class="py-lineno">405</tt> <a class="py-toggle" href="#" id="Tagger-toggle" onclick="return toggle('Tagger');">-</a><tt class="py-line"><tt class="py-keyword">class</tt> <a class="py-def-name" href="tagger.Tagger-class.html">Tagger</a><tt class="py-op">:</tt> </tt>
</div><div id="Tagger-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="Tagger-expanded"><a name="L406"></a><tt class="py-lineno">406</tt>  <tt class="py-line">    <tt class="py-docstring">'''</tt> </tt>
<a name="L407"></a><tt class="py-lineno">407</tt>  <tt class="py-line"><tt class="py-docstring">    Master class for tagging text documents</tt> </tt>
<a name="L408"></a><tt class="py-lineno">408</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L409"></a><tt class="py-lineno">409</tt>  <tt class="py-line"><tt class="py-docstring">    (this is a simple interface that should allow convenient experimentation</tt> </tt>
<a name="L410"></a><tt class="py-lineno">410</tt>  <tt class="py-line"><tt class="py-docstring">    by using different classes as building blocks)</tt> </tt>
<a name="L411"></a><tt class="py-lineno">411</tt>  <tt class="py-line"><tt class="py-docstring">    '''</tt> </tt>
<a name="L412"></a><tt class="py-lineno">412</tt>  <tt class="py-line"> </tt>
<a name="Tagger.__init__"></a><div id="Tagger.__init__-def"><a name="L413"></a><tt class="py-lineno">413</tt> <a class="py-toggle" href="#" id="Tagger.__init__-toggle" onclick="return toggle('Tagger.__init__');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="tagger.Tagger-class.html#__init__">__init__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">reader</tt><tt class="py-op">,</tt> <tt class="py-param">stemmer</tt><tt class="py-op">,</tt> <tt class="py-param">rater</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="Tagger.__init__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="Tagger.__init__-expanded"><a name="L414"></a><tt class="py-lineno">414</tt>  <tt class="py-line">        <tt class="py-docstring">'''</tt> </tt>
<a name="L415"></a><tt class="py-lineno">415</tt>  <tt class="py-line"><tt class="py-docstring">        @param reader: a L{Reader} object</tt> </tt>
<a name="L416"></a><tt class="py-lineno">416</tt>  <tt class="py-line"><tt class="py-docstring">        @param stemmer: a L{Stemmer} object</tt> </tt>
<a name="L417"></a><tt class="py-lineno">417</tt>  <tt class="py-line"><tt class="py-docstring">        @param rater: a L{Rater} object</tt> </tt>
<a name="L418"></a><tt class="py-lineno">418</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L419"></a><tt class="py-lineno">419</tt>  <tt class="py-line"><tt class="py-docstring">        @returns: a new L{Tagger} object</tt> </tt>
<a name="L420"></a><tt class="py-lineno">420</tt>  <tt class="py-line"><tt class="py-docstring">        '''</tt> </tt>
<a name="L421"></a><tt class="py-lineno">421</tt>  <tt class="py-line">         </tt>
<a name="L422"></a><tt class="py-lineno">422</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">reader</tt> <tt class="py-op">=</tt> <tt class="py-name">reader</tt> </tt>
<a name="L423"></a><tt class="py-lineno">423</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">stemmer</tt> <tt class="py-op">=</tt> <tt class="py-name">stemmer</tt> </tt>
<a name="L424"></a><tt class="py-lineno">424</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">rater</tt> <tt class="py-op">=</tt> <tt class="py-name">rater</tt> </tt>
</div><a name="L425"></a><tt class="py-lineno">425</tt>  <tt class="py-line"> </tt>
<a name="Tagger.__call__"></a><div id="Tagger.__call__-def"><a name="L426"></a><tt class="py-lineno">426</tt> <a class="py-toggle" href="#" id="Tagger.__call__-toggle" onclick="return toggle('Tagger.__call__');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="tagger.Tagger-class.html#__call__">__call__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">text</tt><tt class="py-op">,</tt> <tt class="py-param">tags_number</tt><tt class="py-op">=</tt><tt class="py-number">5</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="Tagger.__call__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="Tagger.__call__-expanded"><a name="L427"></a><tt class="py-lineno">427</tt>  <tt class="py-line">        <tt class="py-docstring">'''</tt> </tt>
<a name="L428"></a><tt class="py-lineno">428</tt>  <tt class="py-line"><tt class="py-docstring">        @param text:        the string of text to be tagged</tt> </tt>
<a name="L429"></a><tt class="py-lineno">429</tt>  <tt class="py-line"><tt class="py-docstring">        @param tags_number: number of best tags to be returned</tt> </tt>
<a name="L430"></a><tt class="py-lineno">430</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L431"></a><tt class="py-lineno">431</tt>  <tt class="py-line"><tt class="py-docstring">        Returns: a list of (hopefully) relevant tags</tt> </tt>
<a name="L432"></a><tt class="py-lineno">432</tt>  <tt class="py-line"><tt class="py-docstring">        '''</tt>  </tt>
<a name="L433"></a><tt class="py-lineno">433</tt>  <tt class="py-line"> </tt>
<a name="L434"></a><tt class="py-lineno">434</tt>  <tt class="py-line">        <tt class="py-name">tags</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">reader</tt><tt class="py-op">(</tt><tt class="py-name">text</tt><tt class="py-op">)</tt> </tt>
<a name="L435"></a><tt class="py-lineno">435</tt>  <tt class="py-line">        <tt class="py-name">tags</tt> <tt class="py-op">=</tt> <tt class="py-name">map</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">stemmer</tt><tt class="py-op">,</tt> <tt class="py-name">tags</tt><tt class="py-op">)</tt> </tt>
<a name="L436"></a><tt class="py-lineno">436</tt>  <tt class="py-line">        <tt class="py-name">tags</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">rater</tt><tt class="py-op">(</tt><tt class="py-name">tags</tt><tt class="py-op">)</tt> </tt>
<a name="L437"></a><tt class="py-lineno">437</tt>  <tt class="py-line"> </tt>
<a name="L438"></a><tt class="py-lineno">438</tt>  <tt class="py-line">        <tt class="py-keyword">return</tt> <tt class="py-name">tags</tt><tt class="py-op">[</tt><tt class="py-op">:</tt><tt class="py-name">tags_number</tt><tt class="py-op">]</tt> </tt>
</div></div><a name="L439"></a><tt class="py-lineno">439</tt>  <tt class="py-line"> </tt>
<a name="L440"></a><tt class="py-lineno">440</tt>  <tt class="py-line"> </tt>
<a name="L441"></a><tt class="py-lineno">441</tt>  <tt class="py-line"> </tt>
<a name="L442"></a><tt class="py-lineno">442</tt>  <tt class="py-line"><tt class="py-keyword">if</tt> <tt class="py-name">__name__</tt> <tt class="py-op">==</tt> <tt class="py-string">'__main__'</tt><tt class="py-op">:</tt> </tt>
<a name="L443"></a><tt class="py-lineno">443</tt>  <tt class="py-line"> </tt>
<a name="L444"></a><tt class="py-lineno">444</tt>  <tt class="py-line">    <tt class="py-keyword">import</tt> <tt class="py-name">glob</tt> </tt>
<a name="L445"></a><tt class="py-lineno">445</tt>  <tt class="py-line">    <tt class="py-keyword">import</tt> <tt class="py-name">pickle</tt> </tt>
<a name="L446"></a><tt class="py-lineno">446</tt>  <tt class="py-line">    <tt class="py-keyword">import</tt> <tt class="py-name">sys</tt> </tt>
<a name="L447"></a><tt class="py-lineno">447</tt>  <tt class="py-line"> </tt>
<a name="L448"></a><tt class="py-lineno">448</tt>  <tt class="py-line">    <tt class="py-keyword">if</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">)</tt> <tt class="py-op">&lt;</tt> <tt class="py-number">2</tt><tt class="py-op">:</tt> </tt>
<a name="L449"></a><tt class="py-lineno">449</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">'No arguments given, running tests: '</tt> </tt>
<a name="L450"></a><tt class="py-lineno">450</tt>  <tt class="py-line">        <tt class="py-name">documents</tt> <tt class="py-op">=</tt> <tt class="py-name">glob</tt><tt class="py-op">.</tt><tt class="py-name">glob</tt><tt class="py-op">(</tt><tt class="py-string">'tests/*'</tt><tt class="py-op">)</tt> </tt>
<a name="L451"></a><tt class="py-lineno">451</tt>  <tt class="py-line">    <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L452"></a><tt class="py-lineno">452</tt>  <tt class="py-line">        <tt class="py-name">documents</tt> <tt class="py-op">=</tt> <tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">:</tt><tt class="py-op">]</tt> </tt>
<a name="L453"></a><tt class="py-lineno">453</tt>  <tt class="py-line">     </tt>
<a name="L454"></a><tt class="py-lineno">454</tt>  <tt class="py-line">    <tt class="py-keyword">print</tt> <tt class="py-string">'Loading dictionary... '</tt> </tt>
<a name="L455"></a><tt class="py-lineno">455</tt>  <tt class="py-line">    <tt class="py-name">weights</tt> <tt class="py-op">=</tt> <tt class="py-name">pickle</tt><tt class="py-op">.</tt><tt class="py-name">load</tt><tt class="py-op">(</tt><tt class="py-name">open</tt><tt class="py-op">(</tt><tt class="py-string">'data/dict.pkl'</tt><tt class="py-op">,</tt> <tt class="py-string">'rb'</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L456"></a><tt class="py-lineno">456</tt>  <tt class="py-line"> </tt>
<a name="L457"></a><tt class="py-lineno">457</tt>  <tt class="py-line">    <tt id="link-27" class="py-name" targets="Module tagger=tagger-module.html"><a title="tagger" class="py-name" href="#" onclick="return doclink('link-27', 'tagger', 'link-27');">tagger</a></tt> <tt class="py-op">=</tt> <tt id="link-28" class="py-name" targets="Class tagger.Tagger=tagger.Tagger-class.html"><a title="tagger.Tagger" class="py-name" href="#" onclick="return doclink('link-28', 'Tagger', 'link-28');">Tagger</a></tt><tt class="py-op">(</tt><tt id="link-29" class="py-name" targets="Class tagger.Reader=tagger.Reader-class.html"><a title="tagger.Reader" class="py-name" href="#" onclick="return doclink('link-29', 'Reader', 'link-29');">Reader</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt id="link-30" class="py-name" targets="Class tagger.Stemmer=tagger.Stemmer-class.html"><a title="tagger.Stemmer" class="py-name" href="#" onclick="return doclink('link-30', 'Stemmer', 'link-30');">Stemmer</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt id="link-31" class="py-name" targets="Class tagger.Rater=tagger.Rater-class.html"><a title="tagger.Rater" class="py-name" href="#" onclick="return doclink('link-31', 'Rater', 'link-31');">Rater</a></tt><tt class="py-op">(</tt><tt class="py-name">weights</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L458"></a><tt class="py-lineno">458</tt>  <tt class="py-line"> </tt>
<a name="L459"></a><tt class="py-lineno">459</tt>  <tt class="py-line">    <tt class="py-keyword">for</tt> <tt class="py-name">doc</tt> <tt class="py-keyword">in</tt> <tt class="py-name">documents</tt><tt class="py-op">:</tt> </tt>
<a name="L460"></a><tt class="py-lineno">460</tt>  <tt class="py-line">        <tt class="py-keyword">with</tt> <tt class="py-name">open</tt><tt class="py-op">(</tt><tt class="py-name">doc</tt><tt class="py-op">,</tt> <tt class="py-string">'r'</tt><tt class="py-op">)</tt> <tt class="py-keyword">as</tt> <tt class="py-name">file</tt><tt class="py-op">:</tt> </tt>
<a name="L461"></a><tt class="py-lineno">461</tt>  <tt class="py-line">            <tt class="py-keyword">print</tt> <tt class="py-string">'Tags for '</tt><tt class="py-op">,</tt> <tt class="py-name">doc</tt><tt class="py-op">,</tt> <tt class="py-string">':'</tt> </tt>
<a name="L462"></a><tt class="py-lineno">462</tt>  <tt class="py-line">            <tt class="py-keyword">print</tt> <tt id="link-32" class="py-name"><a title="tagger" class="py-name" href="#" onclick="return doclink('link-32', 'tagger', 'link-27');">tagger</a></tt><tt class="py-op">(</tt><tt class="py-name">file</tt><tt class="py-op">.</tt><tt class="py-name">read</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L463"></a><tt class="py-lineno">463</tt>  <tt class="py-line"> </tt><script type="text/javascript">
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